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Finding the Fourth Proportional to 716,042.04, 988,145.16 and 393,754.44

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Solution

The fourth proportional to 716,042.04, 988,145.16 and 393,754.44 is: 543,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,042.04 : 988,145.16 = 393,754.44 : x
  2. Step 2: Convert to fraction form
    716,042.04/988,145.16 = 393,754.44/x
  3. Step 3: Cross multiply
    716,042.04x = 988,145.16 × 393,754.44
  4. Step 4: Simplify right side
    716,042.04x = 389,086,544,114.51
  5. Step 5: Solve for x
    x = 389,086,544,114.51/716,042.04
  6. Step 6: Final answer
    x = 543,385.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.